Safety authentication method applied to parking lot as well as related device and system
A security authentication and parking lot technology, which is applied in user identity/authority verification and key distribution, can solve the problem of low security in the parking lot management system, and achieve the effect of strengthening protection, high security, and improving security
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Embodiment 1
[0071] Embodiments of the present invention will be described from the perspective of a parking lot management system. The parking system may include a card issuing device and an authentication device, wherein the authentication device may include a terminal, a SAM card, and a CPU card.
[0072] A safety authentication method applied to a parking lot, comprising: reading a first root key and a second root key, generating a master control key according to the first root key and the second root key, and secreting the master control key The key is distributed to generate the main card issuing key and the SAM card issuing control key, and the CPU card sub-key is generated according to the card-issuing main card key, and the SAM card key is generated according to the SAM card issuing control key, and the CPU card sub-key is generated according to the SAM card issuing control key. and the SAM card key to authenticate the user identity.
[0073] Such as figure 1 As shown, the specif...
Embodiment 2
[0121] According to the method described in Embodiment 1, an example will be given below for further detailed description.
[0122] Such as Figure 2a As shown, the figure is a schematic diagram of the principle of the parking lot management system, such as Figure 2a As shown, the parking lot management system can include a card issuing device and an authentication device, wherein the authentication device can include a terminal, a CPU card and a SAM card, and in addition, the authentication device can also include a parking lot controller, wherein the structure and function of each device are specific Can be as follows:
[0123] (1) terminal;
[0124] The terminal may include modules such as a micro control unit, a communication module, and a radio frequency interface;
[0125] As the initiator and contactor of the interaction between the SAM card and the CPU card, the terminal transmits and processes the interaction information between the SAM card and the CPU card.
[...
Embodiment 3
[0195] In order to better implement the above method, an embodiment of the present invention also provides a card issuing device applied to a parking lot, referred to as a card issuing device, such as image 3 As shown, the card issuing device includes a reading unit 301, a first generating unit 302, a computing unit 303 and a second generating unit 304;
[0196]A reading unit 301, configured to read the first root key and the second root key;
[0197] For example, the first root key can be loaded in the first mother card, and the second root key can be loaded in the second mother card, wherein, the first mother card and the second mother card are both seed key cards, loaded respectively There is a part of the root key. For the convenience of description, in the embodiment of the present invention, the part of the root key loaded in the first mother card is called the first root key, and the part of the key loaded in the second mother card is called called the second root key...
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